0EC_PCA_1 Accumulated Balance field issue

Question

Hi Gurus/Experts,
We have a standard extractor in ECC side: 0EC_PCA_1 wherein USD currency (CURRTYPE/Currecny type = 30) is giving out a sum value for Accumulated Balance field of -300,962.66 for Plant A. I checked on its corresponding EUR value (CURRTYPE/Currency type = 10) it is giving out a sum value of +4,060,629.43 as shown below.
Plant
Fiscal year/period
Currency Key / Type
Accumulated Bal(BALANCE)
Plant A
2011/005
EUR / 10
+4,060,629.43 <--Balance is summation value
Plant A
2011/005
USD / 30
-300,962.66 <--Balance is summation value
Logically thinking, if we sum up all of the accumulated balance and result is +4,060,629.43 in Euro, it should appear also as +USD after summing up the accumulated balance in the corresponding currency. But given this scenario, we are getting a negative result for USD value. I already checked the exractor on how is the Accumulated balance is being populated on ECC side but unfortunately, did not find any luck. I was not able to validate the records of Accumulated balance with the source table GLPTC as I don't have that much experience on the ABAP side.
As for my questions:
1. How is the currency conversion works on this extractor for Accumulated Balance field?
2. How is the value for Accumulated Balance derived?
Please take note also that isue rises at ECC side so I did not include the data flow on BW side.
Thanks!

Answer 1

You need to include period 000 in your query to get the year b/f
This will bring the HSL00 (or whatever it is called (from memory) from the GLPCT table
To calaculate future balances or ata where there is no movement in a month you need to implement an oss note which puts code into the start routine of the update to the cube
Basically what it does is add the value for 0BALANCE for each period from the period in the record into period +1 up to period = 16
eg
Period 2 balance = 100
comes through
this then posts
Period 2 balance = 100
Period 3 balance = 100
Period 4 balance = 100
Period 5 balance = 100
Period 6 balance = 100
Period 7 balance = 100
Period 8 balance = 100
Period 9 balance = 100
Period 10 balance = 100
Period 11 balance = 100
Period 12 balance = 100
Period 16 balance = 100
then another record comes in in period 3 for 50
Then you get
Period 2 balance = 100
Period 3 balance = 100
Period 3 balance = 50
Period 4 balance = 100
Period 4 balance = 50
Period 5 balance = 100
Period 5 balance = 50
Period 6 balance = 100
Period 6 balance = 50
Period 7 balance = 100
Period 7 balance = 50
Period 8 balance = 100
Period 8 balance = 50
Period 9 balance = 100
Period 9 balance = 50
Period 10 balance = 100
Period 10 balance = 50
Period 16 balance = 100
Period 16 balance = 50
thus when you compress the cube or/and run the query - all looks very nice